Core: Rewrite plugin system

include/Nazara/Core/Plugin.hpp

@@ -0,0 +1,55 @@
+// Copyright (C) 2022 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
+// This file is part of the "Nazara Engine - Core module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#pragma once
+
+#ifndef NAZARA_CORE_PLUGIN_HPP
+#define NAZARA_CORE_PLUGIN_HPP
+
+#include <Nazara/Prerequisites.hpp>
+#include <Nazara/Core/Config.hpp>
+#include <Nazara/Core/DynLib.hpp>
+#include <Nazara/Core/PluginInterface.hpp>
+#include <memory>
+#include <type_traits>
+
+namespace Nz
+{
+	template<typename T>
+	class Plugin
+	{
+		static_assert(std::is_base_of_v<PluginInterface, T>);
+
+		public:
+			Plugin(DynLib dynLib, std::unique_ptr<T> pluginInterface, bool isActive = false);
+			Plugin(const Plugin&) = delete;
+			Plugin(Plugin&&) = delete;
+			~Plugin();
+
+			bool Activate();
+
+			template<typename U> Plugin<U> Cast() &&;
+
+			void Deactivate();
+
+			const DynLib& GetDynamicLibrary() const;
+
+			T* operator->();
+			const T* operator->() const;
+
+			Plugin& operator=(const Plugin&) = delete;
+			Plugin& operator=(Plugin&&) = delete;
+
+		private:
+			std::unique_ptr<T> m_interface;
+			DynLib m_lib;
+			bool m_isActive;
+	};
+
+	using GenericPlugin = Plugin<PluginInterface>;
+}
+
+#include <Nazara/Core/Plugin.inl>
+
+#endif // NAZARA_CORE_PLUGIN_HPP